title: Ultrastructure of Archigetes sieboldi (Cestoda: Caryophyllidea): relationship between progenesis, development and evolution.
mesh_terms: D000818:Animals; D005075:Biological Evolution; D002589:Cestoda / Q000254:growth & development / Q000502:physiology / Q000648:ultrastructure; D006790:Host-Parasite Interactions; D009835:Oligochaeta / Q000469:parasitology*